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21 Cards in this Set

  • Front
  • Back
skeletal muscle
striated, voluntary
Muscle belly
fleshy part of muscle
tendons
at either end of the muscle
Epimysium
Connective tissue covering of skeletal muscle that covers the entire surface and is continuous with the perimysium
circumduction
a combination of flex/ext, abduct/adduction; cheap rotation - not true.
Perimysium
connective tissue covering of muscle that covers the fascicles and is continuous with the epimysium, but is inside the muscle
endomysium
connective tissue covering inside muscle; covers each fiber.
sliding filament theory
basis of muscular motion
agonist
muscles that are prime movers; responsible for a specific motion, basic functions
antagonist
does the opposite motion of an agonist
synergist
prevents unwanted motion at some joint, to facilitate the motion of a muscle at another joint.
flexion
decreasing the angle at a joint (raising the thigh)
extension
increasing the angle at a joint (swinging thigh back) occurs in the sagittal plane.
abduction
moving away from the midline; occurs in the coronal plane
adduction
moving toward the midline; coronal plane
rotation
moving a bone around its longitudinal axis; can be medial and lateral
origin
proximal to insertion
smooth muscle
loosely organized, involuntary
insertion
distal to origin
sarcomere
a basic unit of the muscle; consists of Fascicles>Fibers>Myofibrils>Myofilaments
Cardiac muscle
striated, involuntary